response-blob-mimetype.html | Explore in Territory

<!DOCTYPE html>
<body>

<script src="/js-test-resources/js-test.js"></script>

<script>
description('This tests that XMLHttpRequest lowers the MIME Type when creates a response blob.');
window.jsTestIsAsync = true;    

function get(url) {
    return new Promise(function(resolve, reject) {
        var xhr = new XMLHttpRequest();
        var blob = new Blob(['Test Content']);
        xhr.responseType = 'blob';
        xhr.open('GET', url, true);
        xhr.onreadystatechange = function() {
            if (xhr.readyState === 4) {
                resolve(xhr);
            }
        }
        xhr.send(blob);
    });
}

get('/dom/resources/send-mime-type.php?m=MULTIPART/MIXED').then(function(xhr) {
    returnedMimeType = xhr.response.type;
    shouldBeEqualToString("returnedMimeType", "multipart/mixed");

    return get('/dom/resources/send-mime-type.php?m=Text/Plain');
}).then(function(xhr) {
    returnedMimeType = xhr.response.type;
    shouldBeEqualToString("returnedMimeType", "text/plain");
}).catch(function(reason) {
    testFailed(String(reason));
}).then(finishJSTest, finishJSTest);

</script>
</body>

chromium/third_party/blink/web_tests/http/tests/xmlhttprequest/response-blob-mimetype.html